Package io.deephaven.engine.liveness

Class Liveness

java.lang.Object

io.deephaven.engine.liveness.Liveness

public final class Liveness
extends Object

Utility class for liveness-related instrumentation.

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	DEBUG_MODE_ENABLED
static final Logger	log

Method Summary

Modifier and Type	Method	Description
static ScheduledFuture<?>	scheduleCountReport(@NotNull ScheduledExecutorService scheduler)	Schedule a job to log the count of known outstanding LivenessReferents.
static boolean	verifyCachedObjectForReuse(Object object)	Determine whether a cached object should be reused, w.r.t.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

log

public static final Logger log

DEBUG_MODE_ENABLED

public static final boolean DEBUG_MODE_ENABLED

Method Details

scheduleCountReport

public static ScheduledFuture<?> scheduleCountReport(@NotNull
 @NotNull ScheduledExecutorService scheduler)

Schedule a job to log the count of known outstanding LivenessReferents.

Parameters:

scheduler - The ScheduledExecutorService to use

Returns:

The ScheduledFuture for the scheduled job

verifyCachedObjectForReuse

public static boolean verifyCachedObjectForReuse(Object object)

Determine whether a cached object should be reused, w.r.t. liveness. Null inputs are never safe for reuse. If the object is a LivenessReferent and is a refreshing DynamicNode, this method will return the result of trying to manage object with the top of the current thread's LivenessScopeStack.

Parameters:

object - The object

Returns:

True if the object did not need management, or if it was successfully managed, false otherwise